*{
    margin: 0;
    padding: 0;
}
.progress{
    border: 1px solid red;
    position: relative;
    width: 50%;
    height: 20px;
    margin: 0 auto;
    background-color: #f5f5f5;
    display: flex;
    align-items: center;
    .mask{
        position: absolute;
        left: 0;
        top: 0;
        z-index: 1000;
        width: 100%;
        height: 100%;
        background-color: transparent;
    }
    .bar{
        width: 0;
        height: 50%;
        // border-radius: 6px;
        background-color: #008ac5;
    }
    .circle{
        position: absolute;
        left: -10px;
        top: 0;
        width: 20px;
        height: 100%;
        border-radius: 50%;
        background-color: burlywood;
        opacity: 0.5;
    }
}